题目内容：
How often does the woman go to the doctor for a check-up?
A．Once every year. B．Twice a year.
C．Once every three years.
参考答案：
答案解析：
单选题：How often does the woman go to the doctor for a check-up?
- 题目分类：公共英语二级
- 题目类型：单选题
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B．Twice a year.
C．Once every three years.